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Vacuum Diffusion Pump
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LEYBOLD TRIVAC D16B Oil Lubricated Vacuum Pump 11266, 230V/400V, 50/60Hz
Question & Answers For:
Vacuum Diffusion Pump
Past Questions, Helpful Answers.
What is a vacuum diffusion pump used for?
A vacuum diffusion pump is used to achieve high vacuum levels in industrial and scientific applications, such as semiconductor manufacturing, metallurgy, research laboratories, and coating processes.
How does a vacuum diffusion pump work?
It operates by heating a special pump oil to generate vapor, which moves upward and directs gas molecules downward, allowing a vacuum to form. It relies on diffusion rather than moving parts to create a high vacuum environment.
What are the advantages of using a vacuum diffusion pump?
It offers high pumping speed, the ability to reach ultra-high vacuum levels, long operational life, and reliability with minimal maintenance since it has no moving parts.
Does a vacuum diffusion pump require backing pumps?
Yes, diffusion pumps require a backing pump, such as a rotary vane pump, to remove gases from the system and maintain proper vacuum operation.
What type of oil is used in a vacuum diffusion pump?
Specially formulated diffusion pump oils, such as silicone-based or hydrocarbon oils, are used to ensure efficient operation and longevity.
How do I maintain a vacuum diffusion pump?
Regular maintenance includes checking and replacing the diffusion pump oil, cleaning the pump body to prevent contamination, and ensuring the cooling system is functioning properly.
What factors affect the performance of a vacuum diffusion pump?
Factors include proper oil selection, operating temperature, effective backing pump performance, system cleanliness, and cooling efficiency.
Can a vacuum diffusion pump handle all types of gases?
While it can handle many gases, reactive or corrosive gases may degrade the pump oil and reduce efficiency. Proper filtration or alternative pumping solutions may be needed for such applications.